Namespace
Varianti

std::stack::top

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< cpp‎ | container‎ | stack

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C++
 
Contenitori libreria
 
std :: stack
Membri funzioni
Original:
Member functions
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stack::stack
stack::~stack
stack::operator=
Elemento accesso
Original:
Element access
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stack::top
Capacità
Original:
Capacity
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stack::empty
stack::size
Modificatori
Original:
Modifiers
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stack::push
stack::emplace
stack::pop
stack::swap
 
reference top();
const_reference top() const;
Restituisce riferimento all'elemento superiore nella pila. Questo è l'elemento più recente spinta. Questo elemento verrà rimosso in una chiamata a pop(). Chiama efficacemente c.back().
Original:
Returns reference to the top element in the stack. This is the most recently pushed element. This element will be removed on a call to pop(). Effectively calls c.back().
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Indice

[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

riferimento all'ultimo elemento
Original:
reference to the last element
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[modifica] Complessità

Constant
Original:
Constant
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[modifica] Vedi anche

 inserts element at the top
(metodo pubblico) [modifica]
rimuove l'elemento superiore
Original:
removes the top element
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(metodo pubblico) [modifica]

[modifica] Esempio

#include <stack>
#include <iostream>
 
int main()
{
    std::stack<int>   s;
 
    s.push( 2 );
    s.push( 6 );
    s.push( 51 );
 
    std::cout << s.size() << " elements on stack\n";
    std::cout << "Top element: "
	      << s.top()         // Leaves element on stack
	      << "\n";
    std::cout << s.size() << " elements on stack\n";
    s.pop();
    std::cout << s.size() << " elements on stack\n";
    std::cout << "Top element: " << s.top() << "\n";
 
    return 0;
}

Output: 

3 elements on stack
Top element: 51
3 elements on stack
2 elements on stack
Top element: 6
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/container/stack/top&oldid=25372"